The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
Jul. 27, 2022
Aac Kaitai Technologies (Wuhan) Co., Ltd, Hubei, CN;
Qiang Dan, Shenzhen, CN;
Yu Shen, Shenzhen, CN;
Shiyang Cheng, Shenzhen, CN;
Yiwei Zhou, Shenzhen, CN;
Yang Li, Shenzhen, CN;
AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD, Wuhan, CN;
Abstract
A sound production device includes a substrate having a cavity and a plurality of cantilever diaphragms fixed on the substrate. Each of the plurality of the cantilever diaphragms includes a fixed end fixed on the substrate and a free end extending from the fixed end to a position suspended above the cavity. The free end includes a first surface and a second surface oppositely arranged. The free end and the substrate or other free ends are spaced to form a gap. The sound production device further includes a first dielectric elastomer actuator, a second dielectric elastomer actuator, and a flexible connector. The sound production device of the present disclosures adopts dielectric elastomer actuators on both of the upper and lower sides of the cantilever diaphragms to together act on the cantilever diaphragms, thereby improving the linearity of the sound production device.